US Patent Issued to LEGO STONE on June 3 for "Torsion-resistant three-density high rigidity midsole" (Taiwanese Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,317,950, issued on June 3, was assigned to LEGO STONE Co. LTD. (Taichung, Taiwan).

"Torsion-resistant three-density high rigidity midsole" was invented by Chung-Hao Chang (Taichung, Taiwan) and Chia-Ying Chang (Taichung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A torsion-resistant three-density high rigidity midsole includes a midsole body having a front region, a back region, and a middle region integrally connected between the front and back regions. The front region has a front region density and a front region length. The back region has a back region length, and a back region density smaller than the front region density. The middle reg...